. 2017 Nov-Dec;22(6):43–48. doi: 10.1590/2177-6709.22.6.043-048.oar

Table 2. Plaque index and gingival index stratified by sex and age.

	Variables		T₀		T₁		T₂		T₃
	Variables		Mean	SE	Mean	SE	Mean	SE	Mean	SE
Plaque Index	Sex	F	2.281	0.058	2.246	0.056	2.441	0.061	2.353	0.058
	Sex	M	2.224^a.b.c	0.043	2.710^a	0.054	2.877^b	0.051	2.869^c	0.049
	Age	8-11	2.370	0.046	2.460	0.052	2.620	0.056	2.600	0.052
	Age	12-15	2.080^a.b.c	0.051	2.620^a	0.062	2.810^b	0.055	2.750^c	0.056
Gingival Index	Sex	F	1.180	0.024	1.340^d	0.020	1.380^e	0.02	1.430^d.e	0.021
	Sex	M	1.110	0.021	1.270	0.017	1.270	0.016	1.350	0.015
	Age	8-11	1.160	0.022	1.210^f	0.019	1.270	0.018	1.310	0.017
	Age	12-15	1.110^c	0.023	1.380^f	0.018	1.350^e	0.017	1.450^c.e	0.018

T₀ = baseline; T₁ = 7 days; T₂ = 28 days; T₃ = 90 days; SE = standard error; F = female; M = male; Significant (p< 0.05) intra-group comparisons: a (T₀ x T₁); b (T₀ x T₂); c (T₀ x T₃); d (T₁ x T₃); e (T₂ x T₃); Significant (p < 0.05) inter-group comparison: f (8-11 x 12-15).